Java String Split by Length splitLines(String paragraph, int lineLength)

Description

split Lines

License

Open Source License

Declaration

public static List<String> splitLines(String paragraph, int lineLength) 

Method Source Code

//package com.java2s;
//License from project: Open Source License 

import java.util.ArrayList;
import java.util.List;

public class Main {
    public static List<String> splitLines(String paragraph, int lineLength) {
        List<String> lines = new ArrayList<String>();
        int lineStart = 0;
        int lastSpace = -1;
        while (true) {
            int nextSpace = paragraph.indexOf(' ', lastSpace + 1);
            if (nextSpace == -1) {
                // End of paragraph
                lines.add(paragraph.substring(lineStart, paragraph.length()));
                break;
            } else if (nextSpace - lineStart > lineLength) {
                if (lastSpace + 1 == lineStart) {
                    // Block of more than lineLength without a space in it - has to be one line
                    lastSpace = nextSpace;
                }//from  w  w  w  .ja v a  2s . com

                // End of line at last space
                lines.add(paragraph.substring(lineStart, lastSpace));
                lineStart = lastSpace + 1;
            } else {
                lastSpace = nextSpace;
            }
        }
        return lines;
    }
}

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